Abstract
We report a fiber inline Mach-Zehnder-type core-cladding-mode interferometer fabricated by two-point CO2 laser irradiations on a single-mode fiber. the laser irradiations caused efficient light coupling from the core mode to the lower order cladding modes and vice versa. High-quality interference spectra with a fringe visibility of about 20 dB were observed for four different interferometer lengths (5, 10, 20, and 40 mm). the temperature sensitivity of the device with a length of 5 mm was measured to be 0.0817 nm/°C. the sensitivity for refractive index measurement of the device was comparable with a long-period fiber grating of LP04 cladding mode. © 2009 IEEE.
Recommended Citation
T. Wei et al., "Fiber Inline Core-cladding-mode Mach-Zehnder Interferometer Fabricated by Two-point CO2 Laser Irradiations," IEEE Photonics Technology Letters, vol. 21, no. 10, pp. 669 - 671, Institute of Electrical and Electronics Engineers, May 2009.
The definitive version is available at https://doi.org/10.1109/LPT.2009.2016116
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
CO laser 2; Fiber-optic sensor; Mach-Zehnder (MZ) interferometer
International Standard Serial Number (ISSN)
1041-1135
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
15 May 2009
Comments
National Science Foundation, Grant CMMI-0825942